Doesn't feel like my husband loves me

I just had twins with my husband and people have always said things about my husband and I think since being postpartum it's started bothering me more. My husband is an extremely reserved person. He's not what people consider a "typical" man. He doesn't really like sex which doesn't bother me too much. He's a little bit of a "prude". Any type of PDA makes him uncomfortable. Even if it's a couple hugging. Where problems are is that he also doesn't like any type of physical affection. He doesn't really like kissing or cuddling or hugging. If you hug him from behind he may unintentionally punch you. It stresses him out. No he's never punched me but he did punch his brother in law. He will show me physical affection sometimes. He mainly doesn't like when other men touch him. It stresses him out wayyy more but he still has trouble with physical affection with me his own wife. It didn't bother me before because he shows affection in other ways like cooking treats for me or watching stuff together but lately especially with postpartum depression I've just really needed that some affection. He will spend time with me but not really much physically. Not even a hug. My family has always said my husband is weird. I've just really been feeling unloved lately.

Edit: I don't THINK he has trauma. He was separated from his parents for a year when he was 9 but he doesn't remember being separated at all or where he was that year. He just knows he was but has no memory of it